Pitching horseshoe



March'zz, 1932- A. R. SWANSTROM PITCHING HORSESHIOE Filed Feb. 26, 1931Hum ummm i u I INVE M'I'Ofi AHT'H UR R. SWANSTROM WM, MM

ATTORNEYS:

Patented Mar. 22,: 1932 siren sTi-m res: i T i ARTHUR R.- SWANSTROM,IOFD'UIUTH, MINI\TESOTA, ASSIGNOR. TO DIAMOND'CALK gANDHORSESHOEjCQ, OF, DULUTH,'MINNESOTA, CORPORATION OI! MINNESOTA rlrcmnenonsnsnon Application filed February 26,1931 Serial 518,414.

I It is an object of the present invention to provide a pitchingshoewith hookslatthe ends thereof for engagingand holdmgthe stake, the saidhooks being formed by cutting L away a portion of the material of thesides of I the shoe adjacent the ends to reduce the width of said endsand forming'projections onsaid reduced ends cooperating with said cutaway portions.

10 It is another object of the invention to provide a pitching shoe withimproved calks for eliminating tumbling when the shoe lands and topromote sliding of the shoe toward the ful' purpose cannot be formed atthe heel of -the shoe by merely providing projections, as 1 hasheretofore been suggestedbecause such, projections would necessarily betoo short. My invention overcomes this difficulty by cutting awayarportion of the material of the side members of the shoe to materiallyreduce thewidth of the heel ends and providing projections on thereduced ends of said side members which cooperate with the, cut awayportions to form. pronounced hooks which will engage the stake and holdthe shoe in place when it lands. a

As heretofore constructed, pitching shoes 5 have been provided with,calks arranged transversely of the heel ends, as is customary withordinary horseshoes. Such calks tend to arrest movement of the shoe whenit lands and to cause undesirable tumblingof the shoe. By my invention,pitching shoes are provided with longitudinally extending calks 4 whichwill not impede the progress of the "shoe after it lands but which" willpermit sliding of the shoe into engagement with the stake.

As a further advantage of my invention, I

have cut away the extreme ends of the side 'members'to. form. angularsurfaces which,

should they come into contact with the stake,

- will cause the shoe to rotate instead of causparts as showntin'thesedrawings but that the inventionmay be embodied in other practical formswithout-departing from the spirit of the invention or the scope thereofas defined in the appended claims.

3111 these drawings, Fig.1 is a planview of a pitchingshoe'constructed'in accordance withimy invention'and showing the actionof the shoe in engaging thestake. "Fig.2 is a sectional View takenonline 2-2 of Fig.1; and I Fig. 3 is a bottom plan view of my pitchingshoe showing the construction and arrange: ment of the calks. 7

these drawings, I have shown a pit'ch ing shoe which" conforms .toregulationsgoverning size and proportions and which'in- Y eludes .1 atoe. portion 10 and side members '11 which terminate a prescribeddistance apart to form the so-called heel opening;

Adjacent to the ends of said side members, I have cut away a-portion ofthe material, as aid-12, and uponthe ends of said side members 'I haveprovided projections 13 which cooperate withsaid cutaway portions 12 toform pronounced hooks. It will be, noted from an inspectionof thedrawings that the projections 13 have curved inner edges which completethe curve of the cut out portions 12. Moreover, the extreme outer endsof the side members and of the projectionsl?) fare angu-,

larly disposed-as at '14. This angular formation of the extreme outerends of'the shoe will be found helpful in the event that the end of theshoe should strike thestake. Instead of the shoe sharply rebounding fromthe stake, it will be'given a rotativemovement about-the said stakeas acenter.

Upon the ends of the said side members 11 adjacent the hooks I haveprovided calks 15 the shape of which is clearly shown in the drawings.It will be seen that the calks have relatively abrupt outer surfacesterminating at the outer edges of said side members 11 whereas the innersurfaces of said calks are of more gradual slope and terminate adjacentthe said hooks. By this arrangement, the highest point of said calkswill be located nearer to the outer edges of said side members, thusproviding surer support for the shoe.

I have also shown my pitching shoe to be provided with a cut out portion16 on the inner edge of the toe of the shoe. This cut out will also behelpful to engage the stake and hold the shoe in place.

On the toe portion, I have provided a calk 17, which as shownin Fig. 3,extends longitudinally of the toe. This calk is of substantially thesame construction as the heel calk 15 and has a-gradual sloping surfacewhich terminates at the cut out 16. If desired, the calks 17 may be madeto extend transversely of the toe, that is to say, in a directionparallel to the calks 15. However, when the calks 15 are provided asshown in Fig. 3, it may be best to have the toe calk extend as in vthesaid figure to form a stop against continued movement of the shoe afterit lands.

In Fig. 1, I have shown in dotted lines the position 01 the shoe just asit has landed adjacent to the stake. Normally, the shoe will rotate inthe direction of the arrows in said figureand in so doing the hooks willengage the stake 18, as shown in full lines.

It is believed that the foregoing description will make my inventionclear to those skilled in the art and that the numerous advantages. ofthe improvements I have provided will be fully appreciated. Thus,by

merelyreducing the width of the heel ends of the shoe, I am enabled toprovide projections on the said ends which will form pronouncedhookstwith the inner edges of the side members.

I claim as my invention:

1. A pitching horseshoe having side members terminating in spaced endsforming a heel opening, said side members having portions of reducedwidth adjacent said ends, and projections on said ends cooperating withsaid portions of reduced width to form pronounced hooks.

2. A pitching horseshoe having side members terminating in spaced endsforming a heel opening, and calks on said ends extending longitudinallyof said side members, said calks having abrupt outer surfaces andgradually sloping inner surfaces.

In witness whereof I have hereunto set my hand this 21st day ofFebruary, 1931. ARTHUR R. SWANSTROM.

